CVE-2021-25953 Prototype Pollution in putil-merge
Prototype pollution in putil-merge allows attackers to cause denial of service and potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-25953?
CVE-2021-25953 is a critical code injection vulnerability in putil-merge, published on 14 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Prototype pollution vulnerability in 'putil-merge' versions1.0.0 through 3.6.6 allows attacker to cause a denial of service and may lead to remote code execution.
Weakness: CWE-1321
Which versions are affected by CVE-2021-25953?
2 open source packages ship an affected version, including putil-merge. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
putil-merge npm | From 1.0.0 | 3.7.0 |
putil-merge npm | From 1.0.0 | 3.7.0 |
Products include Putil-Merge Project Putil-Merge.
How do I fix CVE-2021-25953?
Upgrade putil-merge to 3.7.0 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-25953 being exploited?
There is no known exploitation of CVE-2021-25953 in the wild and no public exploit code.
Other vulnerabilities in putil-merge
Sources
Also known as GHSA-9x7m-9hpg-xxmw.